Products> Antenna Products > Linear to Circular Polarizers
Linear to Circular Polarizer
Product Description
Mi-Wave’s Linear to Circular Polarizers are precision RF components designed to convert linearly polarized electromagnetic signals into circularly polarized signals with high accuracy and stability. These polarizers are engineered for use across a wide range of microwave and millimeter-wave frequency bands, supporting applications in satellite communications, radar systems, RF links, and laboratory test environments.
Circular polarization improves system performance by reducing sensitivity to antenna orientation, polarization mismatch, and multipath effects. Mi-Wave polarizers are available in Right-Hand Circular Polarization (RHCP) or Left-Hand Circular Polarization (LHCP) configurations and are designed to integrate seamlessly with standard waveguide interfaces.
Note: The linear to circular polarizers shown on this website represent only a portion of Mi-Wave’s manufacturing capabilities. We design and build additional polarizer configurations beyond those listed. Consult with Mi-Wave to discuss your specific frequency band, bandwidth, interface, or polarization requirements.
| Model | Circular Antenna Port Internal Diameter (inches) (.XXX in Model No.) | Frequency (GHz) | Flange | Insertion Loss (dB) typical | Bandwidth (GHz) | Axial Ratio (dB) | LINK |
|---|---|---|---|---|---|---|---|
| 282X-XX/.XXX/90 | Option 1 1.094" ID Circular Waveguide Option 2 .938" ID Circular Waveguide Option 3 .797" ID Circular Waveguide | 8-9.97 8.5-11.6 9.7-12.4 | UG-90/U | 1 | 2 | 1 | |
| 282Ku-XX/.XXX/90 | Option 1 .660" ID Circular Waveguide Option 2 .550" ID Circular Waveguide | 12.4-14.6 14.6-17.5 | UG-419/U | 1 | 2.2 | 1 | |
| 282K-XX/.XXX/595 | Option 1 .470" ID Circular Waveguide Option 2 .396" ID Circular Waveguide Option 3 .328" ID Circular Waveguide | 17.5- 20.5 20.5-24.5 24.5-26.5 | UG-595/U | 1 | 3 | 1 | |
| 282A-XX/.XXX/599 | Option 1 .328" ID Circular Waveguide Option 2 .281" ID Circular Waveguide Option 3 .250" ID Circular Waveguide Option 4 .219" ID Circular Waveguide | 26.5-28.5 28.5-33 33-38.5 38.5-40 | UG-599/U | 1 | 5 | 1 | |
| 282B-XX/.XXX/383 | Option 1 .250" ID Circular Waveguide Option 2 .219" ID Circular Waveguide Option 3 .188" ID Circular Waveguide | 33.0-38.5 38.5-43.0 43.0-50.0 | UG-383/U | 1 | 5 | 1 | |
| 282U-XX/.XXX/383 | Option 1 .219" ID Circular Waveguide Option 2 .188" ID Circular Waveguide Option 3 .165" ID Circular Waveguide Option 4 .141" ID Circular Waveguide | 40-43 43-50 50-58 58-60 | UG-383/U-M | 1 | 6 | 1 | |
| 282V-XX/.XXX/385 | Option 1 .165" ID Circular Waveguide Option 2 .141" ID Circular Waveguide Option 3 .125" ID Circular Waveguide | 50-58 58-68 68-75 | UG-385/U | 1 | 7 | 1 | |
| 282E-XX/.XXX/387 | Option 1 .141" ID Circular Waveguide Option 2 .125" ID Circular Waveguide Option 3 .110" ID Circular Waveguide Option 4 .094" ID Circular Waveguide | 60-68 68-77 77-87 87-90 | UG-387/U | 1 | 7 | 1 | |
| 282W-XX/.XXX/387 | Option 1 .125" ID Circular Waveguide Option 2 .110" ID Circular Waveguide Option 3 .094" ID Circular Waveguide Option 4 .082" ID Circular Waveguide | 75-77 77-87 87-100 100-110 | UG-387/U-M | 1 | 8 | 1 | |
| 282F-XX/.XXX/38 | Option 1 .094" ID Circular Waveguide Option 2 .082" ID Circular Waveguide Option 3 .075" ID Circular Waveguide Option 4 .067" ID Circular Waveguide | 90-100 100-112 112-125 125-140 | UG-387/U-M | 1 | 10 | 1 | |
| 282D-XX/.XXX/387 | Option 1 .082" ID Circular Waveguide Option 2 .075" ID Circular Waveguide Option 3 .067" ID Circular Waveguide Option 4 .059" ID Circular Waveguide | 110-112 112-125 125-140 140-170 | UG-387/U-M | 1.5 | 10 | 1 | |
| 282G-XX/.XXX/387 | Option 1 .067" ID Circular Waveguide Option 2 .059" ID Circular Waveguide | 125-140 140-220 | UG-387/U-M | 1.7 | 10 | 1 |
Linear to Circular Polarizer
Mi-Wave’s 282 Series linear to circular polarizers convert input linear signals to circularly polarized output signals. The circular polarization sense (RHCP or LHCP) and center frequency should be specified at the time of order. These linear to circular polarized antennas will yield a maximum VSWR of 1.2 and an axial ratio of 1.0 dB maximum over the indicated bandwidth.
Higher frequencies are available upon request.
Features
• VSWR < 1.2
• Axial Ratio < 1.0 dB Over the indicated bandwidth.
• Converts Linear Input Signals to Circular Out
• Specify Sense of Circular RF Polarization (RHCP or LHCP)
• Available from 12.4 to 220 GHz with 3% or Greater Bandwidth.
Applications
• SatComm
• Test & Measurement Labs
• RF Communication
Why Choose Mi-Wave
Mi-Wave is a trusted manufacturer of microwave and millimeter-wave RF components, supporting commercial, government, and research systems worldwide. Our linear to circular polarizers are designed and manufactured with careful attention to phase balance, axial ratio performance, and low reflection, ensuring reliable polarization conversion across the operating band.
Engineering-Driven Performance
Each polarizer is optimized to deliver tight axial ratio control, stable polarization characteristics, and low VSWR, supporting consistent system behavior in demanding RF environments.
Broad Frequency Expertise
Mi-Wave supports polarization conversion solutions across microwave through millimeter-wave frequencies, enabling integration into a wide range of RF system architectures.
Custom Polarizer Solutions
Custom designs are available to support specific frequency ranges, bandwidths, waveguide interfaces, and polarization requirements. Mi-Wave’s sales engineering team works directly with customers to ensure proper system integration.
What This Product Does
Linear-to-Circular Polarization Conversion
Linear to circular polarizers operate by introducing a controlled phase shift between two orthogonal components of an incoming linearly polarized RF signal. This phase relationship causes the electric field to rotate as the wave propagates, producing a circularly polarized output.
This conversion enables improved link reliability in systems where antenna orientation varies or where circular polarization is required for proper transmit and receive operation. The result is improved signal integrity, reduced polarization loss, and more robust RF system performance.
Typical Uses and Applications
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Satellite communication systems
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RF and microwave communication links
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Radar and sensing systems
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Antenna and polarization testing
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RF and millimeter-wave test laboratories
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System integration and validation environments
Key Features
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Converts linear polarization to circular polarization
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Available in RHCP or LHCP configurations
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Low axial ratio across the operating bandwidth
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Low VSWR for minimal signal reflection
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Suitable for microwave and millimeter-wave frequencies
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Precision mechanical construction for repeatable performance
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Compatible with standard circular waveguide interfaces
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Custom configurations available
